Some materials can be done by active transport, why are they done by passive transport?
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why are some materials that could be moved across the cell membrane by passive transport done by active transport?
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Answer:
Passive transport involves carriers, channels, or direct diffusion through a membrane. This type of transport always operates from regions of greater concentration to regions of lesser concentration. In active transport it is possible to go against the concentration gradient. though there is energy consumption in active transport it is more advantageous to move against the gradient
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